Korean J Pathol.
2000 May;34(5):366-373.
Association between the Expresson of MMP-2 and TIMP-2, and Growth Pattern of Tumor
Border, Lymph Node Metastasis, and Estrogen Receptor in the Invasive Ductal Carcinoma of the
Breast
- Affiliations
-
- 1Departments of Anatomical Pathology, Inha University Hospital, Sungnam 461-192, Korea.
- 2Departments of General Surgery, Inha University Hospital, Sungnam 461-192, Korea.
- 3Department of Pathology, College of Medicine, Korea University.
Abstract
-
The most important prognostic factor of breast cancer is the status of lymph node or
distant metastasis, which is resisted by basement membrane and stromal matrix. MMP (matrix
metalloproteinase)-2 is a 72-kilodalton type IV collagenase/ gelatinase and degrades the type IV
collagen which is a main component of the basement membrane. Therefore, MMP-2 is believed to
be one of the key molecule for cancer invasion and metastasis. Enzymatic activity of MMP is
inhibited by TIMPs (tissue inhibitors of metalloproteinase). TIMP-2 forms a complex with latent
pro-MMP-2 and inhibits the active forms of MMP-2. The balance of MMPs and TIMPs is
suspected as the important factor of invasion and metastasis of the tumor cells. We studied the
association between the expression of MMP-2/TIMP-2 and growth pattern of tumor border, lymph
node metastasis, and estrogen receptor expression in the 57 cases of invasive ductal carcinoma of
the breast using immunohistochemical staining methods. The results revealed increased expression
of MMP-2 in the infiltrating tumor border and tumors with positive lymph node metastasis and
negative estrogen receptor with no statistical significance (p>0.05). But the expression of TIMP-2
was increased in expanding tumor border and tumors with positive lymph node metastasis and
negative estrogen receptor without statistical significance (p>0.05).